MEASURING METHOD FOR GAS HYDRATE CONCENTRATION AND MEASURING DEVICE USED FOR THE SAME, AND CONTROL METHOD FOR GAS HYDRATE GENERATION DEVICE USING MEASURING METHOD AND CONTROL DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide an automatable measuring method capable of measuring gas hydrate concentration efficiently, and also to provide a control method for controlling the quality of the gas hydrate concentration generated with a gas hydrate generation device by using the measuring method. SOLUTION: The pressure inside a measuring container 1 with a specified horizontal cross section is held not less than the generation pressure of gas hydrate and a liquid sample 5 comprising the gas hydrate and deposited water is fed into stored water 7 with a temperature above the generation temperature of the gas hydrate, so that the gas hydrate is decomposed into raw gas and raw water. The volume of the raw gas discharged outside the measuring container 1 is measured with a gas flowmeter 3 and the total volume of the raw water and the deposited water is obtained from the variation of a water level measured with a level gauge 8, and then the concentration of the gas hydrate is calculated from those volumes. COPYRIGHT: (C)2009,JPO&INPIT